/* إعدادات عامة */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* تعيين الخلفية والهوامش */
body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f7f6;
    color: #333;
}

/* رأس الصفحة (Header) */
header {
    background-color: #1a1a1a;
    color: #fff;
    padding: 20px 0;
    text-align: center;
    font-size: 24px;
}

header a {
    color: #fff;
    text-decoration: none;
}

/* التنقل (Navigation Bar) */
nav {
    background-color: #2c3e50;
    padding: 10px 0;
    text-align: center;
}

nav a {
    color: #fff;
    margin: 0 15px;
    text-decoration: none;
    font-size: 18px;
    transition: color 0.3s;
}

nav a:hover {
    color: #3498db;
}

/* تصميم النموذج (Form) */
form {
    width: 100%;
    max-width: 600px;
    margin: 30px auto;
    background-color: #fff;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

form input[type="text"],
form input[type="password"],
form textarea,
form input[type="submit"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border-radius: 4px;
    border: 1px solid #ddd;
    font-size: 16px;
}

form input[type="submit"] {
    background-color: #3498db;
    color: white;
    cursor: pointer;
}

form input[type="submit"]:hover {
    background-color: #2980b9;
}

/* تصميم قائمة المواضيع (Threads) */
.threads-container {
    width: 100%;
    max-width: 1000px;
    margin: 30px auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.thread-item {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid #ddd;
    padding: 15px 0;
}

.thread-item:last-child {
    border-bottom: none;
}

.thread-title {
    font-size: 18px;
    color: #333;
}

.thread-author {
    color: #555;
}

/* تصميم الردود (Replies) */
.replies-container {
    margin-top: 40px;
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
}

.reply-item {
    border-bottom: 1px solid #ddd;
    padding: 15px 0;
}

.reply-item:last-child {
    border-bottom: none;
}

.reply-author {
    color: #3498db;
}

.reply-content {
    margin-top: 10px;
    color: #666;
}

/* تصميم الجداول */
table {
    width: 100%;
    margin-top: 20px;
    border-collapse: collapse;
}

table th,
table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

table th {
    background-color: #2c3e50;
    color: #fff;
}

table tr:hover {
    background-color: #ecf0f1;
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 15px 0;
    margin-top: 40px;
}

footer a {
    color: #fff;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}